[Discuss-gnuradio] USRP2 with XCVR- External Clock Setting

[Vlad Stoica]

Hello

I want to implement an OFDM Transmission at 2.45GHz, and the internal USRP2 
oscillator has a deviation at about 22kHz. That is too much and interrupts the 
(software) synchronisation.

Because of that i want to use an external clock 10MHz with the USPR2.
It shoult be about 5dBm - 15dBm and with an amplitude about Upp = 3V.
An square wave should be best, but also a sinus should do it.

The question is: Where should i adjust the settings so the USRP2
will use the external clock ?

I use it with the Matlab Simulink and the standard firmware image.

I appreciate your hints
Vlad






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